Paul Tillich

“And so we use them for a kind of pleasure which can be called “fun.” But it is not the creative kind of fun often connected with play; it is, rather, a shallow, distracting, greedy way of “having fun.” And it is not by chance that it is that type of fun which can easily be commercialized, for it is dependent on calculable reactions, without passion, without risk, without love. Of all the dangers that threaten our civilization, this is one of the most dangerous ones: the escape from one’s emptiness through a “fun” which makes joy impossible.”
― Paul Tillich, The New Being

“Our language has wisely sensed these two sides of man’s being alone. It has created the word “loneliness” to express the pain of being alone. And it has created the word “solitude” to express the glory of being alone. Although, in daily life, we do not always distinguish these words, we should do so consistently and thus deepen our understanding of our human predicament.”
― Paul Tillich, The Eternal Now